Let's Rock

Reading Level: Gr. 4 Interest Level: Gr. 3-6
This informative series looks at the various members of the rock world. The characteristics of different types of rocks—igneous, sedimentary, and metamorphic—are described from their mineral components to their color, and whether or not they contain fossils. Detailed diagrams also help explain the processes of heat, pressure, weathering, and the rock cycle.